JP5382164B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner that includes an up / down air direction changing device and performs indoor air conditioning.

  Conventionally, as this type of air conditioner, the air outlet is provided with an up / down air direction change blade for controlling the direction of the up / down air blowing direction through a variable arm portion, and there is no air flow feeling during cooling, during heating operation There is one designed to create a comfortable living environment with head cold foot heat (for example, see Patent Document 1).

JP 2002-31400 A

  However, in the configuration of the conventional air conditioner described in Patent Document 1, since both ends of the vertical air direction changing blade are held by the pair of arm portions via the rotation support portion, the long vertical air direction changing blade is long. However, there is a problem in that the center portion is bent and stable wind direction control cannot be obtained. On the other hand, in order to reduce the deflection of the central portion of the up / down airflow direction vanes, if it is attempted to shorten the distance between the pair of arm portions, the arm portions need to be disposed in the air outlet, which increases the blowing resistance. There existed a subject that ventilation performance fell.

  Moreover, in the structure of the said patent document 1 conventional, the assembly method to the air conditioner main body of an up-and-down wind direction change blade | wing or an arm part is not mentioned.

  The present invention solves the above-mentioned conventional problems, and improves the deflection of the up-and-down air direction changing blade while minimizing the deterioration of the air blowing performance at the air outlet, and is excellent in obtaining stable up-and-down air direction control. An object is to provide an air conditioner.

  In order to solve the conventional problems, an air conditioner according to the present invention is arranged and blown out at a heat exchanger, a blow-out port that blows out air that has been heat-exchanged by the heat exchanger, and the blow-out port. An up / down air direction changing blade that changes the vertical direction of the air, a motor that drives the up / down air direction changing blade, and a plurality of arms that hold the up / down air direction changing blade and transmit the movement of the motor to the up / down air direction changing blade. A central arm of the plurality of arms is configured to urge upward force on the up / down airflow direction change blade, the third arm is supported by a case, and the third arm and the case During this time, by generating a predetermined upward frictional force with respect to the downward movement of the third arm, the upward force is applied to the up-and-down wind direction changing blade on the third arm. By It is possible to prevent the center of the lower air direction changing blade will deflect by weight. Moreover, since the said center arm is arrange | positioned along the support | pillar of the said blower outlet, the increase in ventilation resistance can be suppressed to the minimum.

  Since the air conditioner of the present invention can reduce the deflection of the up-and-down air direction changing blades, stable up-and-down air direction control is possible.

The front view of the air conditioner in Embodiment 1 in this invention Sectional drawing which shows the stop state of the air conditioner Perspective view of the outlet of the air conditioner An exploded perspective view of the third drive mechanism of the air conditioner Sectional drawing which shows the wind direction of the same air conditioner upward Sectional drawing which shows the wind direction of the same air conditioner facing down Sectional drawing which shows the operating state of an up-and-down air direction change blade | wing and panel immediately after the operation start of the air conditioner The disassembled perspective view of the 3rd drive mechanism of the air conditioner in Embodiment 2 in this invention.

1st invention is a heat exchanger, the blower outlet which blows off the air heat-exchanged with the said heat exchanger, the up-and-down wind direction change blade | wing which is arrange | positioned at the said blower outlet and changes the direction of the up-down direction of the blown-out air An air conditioner comprising: a motor that drives the up-and-down air direction changing blade; and a plurality of arms that hold the up-and-down air direction changing blade and move the up-and-down air direction changing blade in front of the outlet. 1st which is arrange | positioned among the some arms at the both ends of the said up-down wind direction change blade | wing
The arm and the second arm are driven by arm driving motors provided respectively, and the third arm disposed between the first arm and the second arm is an arm driving motor. And an upward force in the direction in which the up-and-down air direction changing blade is lifted is urged, and further, the third arm and the case are moved against the downward movement of the third arm. By generating a predetermined upward frictional force, the third arm is configured to urge upward force on the up / down airflow direction changing blade, so that the center of the up / down airflow direction changing blade is bent by the weight. And the third arm can be held to prevent downward deflection of the up / down wind direction changing blade.

  In the second invention, the third arm is sandwiched between the first case and the second case to generate a predetermined frictional force, thereby holding the third arm and simplifying the deflection of the up / down air direction changing blades. Can be prevented with a simple configuration.

  In the third invention, in particular, grease is applied between the case and the third arm of the first or second invention, and the third arm is held by the viscosity of the grease so that the vertical wind direction changing blade is bent. Can be prevented.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Hereinafter, the air conditioner in the 1st Embodiment of this invention is demonstrated using FIGS. FIG. 1 is a front view of an air conditioner according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the air conditioner, and FIG. 3 is a perspective view of an air outlet of the air conditioner. This shows the arrangement of the drive mechanism and the arm holding structure.

  The air conditioner in the present embodiment forms a suction port 5 from the front surface to the upper surface of the main body 10, and has a heat exchanger 1 and a fan 2 inside the main body 10, and the heat exchanger 1 is upstream of the fan 2. On the downstream side of the fan 2, an air blowing path 7 for air exchanged by the heat exchanger 1 and an outlet 6 for blowing out the air are formed. Further, the air outlet 6 is provided with an up / down air direction changing blade 30 for blowing the wind up and down, and a support column 8 in the vicinity of the center in the longitudinal direction in order to ensure the strength of the air outlet 6.

  The up-and-down air direction changing blade 30 is held by a drive mechanism 31 (31a, 31b, 31c) and is freely moved and rotated from a state in which the air outlet 6 is closed to a state in front of the air outlet 6. The air blown from the outlet 6 is blown up and down.

  As shown in FIG. 3, the drive mechanism 31 includes a first drive mechanism 31a, a second drive mechanism 31b, and a third drive mechanism 31c. The first drive mechanism 31 a is disposed at the right end of the outlet 6, the second drive mechanism 31 b is disposed at the left end of the outlet 6, and the third drive mechanism 31 c is a column 8 near the center of the outlet 6. Are arranged along.

  Each of the first drive mechanism 31a and the second drive mechanism 31b includes an arm 36a that is a first arm, an arm 36b that is a second arm, and cases 37a and 37b. The arms 36a and 36b are rotatably accommodated in the cases 37a and 37b. The cases 37a and 37b are fixed to the right and left outer sides of the air outlet 6, respectively, and the arms 36a and 36b hold the support portions 32 of the up-and-down air direction changing blades 30 at their respective tips. In particular, the first drive mechanism 31 a includes a blade driving motor 34 at the tip of the arm 36 a, and the blade driving motor 34 rotates the up / down air direction changing blade 30. Furthermore, the first drive mechanism 31a and the second drive mechanism 31b are provided with arm drive motors 35a and 35b, respectively, and the arms 36a and 36b are rotated so that the up-and-down wind direction changing blade 30 is moved in front of the air outlet 6. Can be moved to. The two arm driving motors 35a and 35b need to be linked to each other and controlled to be driven to the same position on the left and right sides, and a stepping motor is preferable as the motor.

  The third drive mechanism 31c located between the first drive mechanism 31a and the second drive mechanism 31b has an arm 36c that is a third arm and a case 37c, and the arm 36c is the case 37c. It is pinched so that it can rotate freely. The arm 36c is further biased by an upward force in the direction of lifting the up / down air direction changing blade 30 by an elastic member 38 made of a torsion spring. The support part 32 in the vicinity of the part is rotatably held.

  The third drive mechanism 31c is not provided with an arm drive motor, but is provided with an elastic member 38 to bias an upward force to the arm 36c, whereby the arm 36a driven by the arm drive motors 35a and 35b, respectively. And the arm 36b simultaneously rotate upward, and it is possible to prevent the central portion of the vertical wind direction changing blade 30 from bending downward due to the weight of the vertical wind direction changing blade 30 and the arm 36c itself. In particular, the bending is more effective when the wind direction is upward, that is, when the up-and-down wind direction changing blade 30 is in a substantially horizontal state. The force urged by the elastic member 38 is a design matter that varies depending on individual specifications. However, if the force is too large, the upper member will bend upward. Therefore, the upper limit is preferably such that the upper member does not bend upward.

  The panel 20 provided above the air outlet 6 on the front surface of the main body 10 is opened and closed by a panel drive mechanism 21 provided on the back side thereof according to the state of operation. The panel drive mechanism 21 is controlled by an operation control unit (not shown). The operation control unit also controls the driving of the arm driving motor 35 and the blade driving motor 34.

Next, operation | movement of the air conditioner in embodiment is demonstrated using FIG.2 and FIG.5,6,7. 5 and 6 are cross-sectional views showing the air blowing operation of the air conditioner in the present embodiment. FIG. 5 shows a state in which the wind direction is blown upward or horizontally, and FIG. 6 shows a state in which the wind direction is blown downward. FIG. 2 is a diagram showing a stopped state of the air conditioner, and shows a state where the panel 20 and the up / down air direction changing blade 30 are closed. FIG. 7 shows a state in which the air conditioner starts operation and the panel 20 and the up / down wind direction changing blade 30 are slightly separated from the main body 10 before reaching the state of FIG. 5 or FIG. 6.

  First, the operation to reach the upward air blowing state shown in FIG. 5 will be described. For example, when the operation of the air conditioner is started by setting the wind direction change mode upward in the cooling operation with a remote controller (not shown), the operation of the panel drive mechanism 21 is shown in FIG. As a result, the panel 20 moves forward away from the suction port 5. At the same time, the arm 36 is rotated by the arm driving motor 35, and the vertical wind direction changing blade 30 is moved forward away from the air outlet 6. Then, as shown in FIG. 5, the panel 20 operates to a position farthest from the suction port 5. On the other hand, the blade driving motor 34 rotates the up / down airflow direction changing blade 30 to a position as shown in FIG. 5, and the air heat-exchanged by the heat exchanger 1 is blown upward.

  The blown air is blown upward or horizontally along the blade shape of the up-and-down air direction changing blade 30 and is guided far away in the depth direction of the room, thus preventing cold air from directly hitting people in the room. Thus, a comfortable indoor environment can be obtained.

  The operation from the upward blowing state to the stopped state is from the upward blowing state shown in FIG. 5 to the stopped state shown in FIG. 2 through the state shown in FIG. 7, but each operation is upward from the stopped state. Since the operation is the reverse of the operation to the blowing state, the description is omitted.

  Next, the operation to reach the downward air blowing state shown in FIG. 6 will be described. When the operation is started by setting the wind direction change mode downward in the heating operation with the remote controller, the operation moves from the position shown in FIG. 2 to the state shown in FIG. 4 through the state shown in FIG. Since the individual operations are the same as the above-described upward blowing, the description thereof will be omitted. However, after the state shown in FIG. 7, the panel 20 is moved to the inlet 5 by the operation of the panel drive mechanism 21 as shown in FIG. 4. To the most distant position. On the other hand, the up / down air direction changing blade 30 is rotated by the blade driving motor 34, and the air is blown downward in the state shown in FIG.

  The air that is blown out by heat exchange in the heat exchanger 1 is guided to the floor surface of the living room near the position directly below the main body 10 along the blade shape of the up / down airflow direction changing blade 30, so that it is directly transmitted to the person in the living room. It is possible to prevent the warm air from being hit and to create a comfortable indoor environment.

  The operation from the downward blowing state to the stopped state is from the downward blowing state shown in FIG. 6 to the stopped state shown in FIG. 2 through the state shown in FIG. 7, but each operation is changed from the stopped state to the downward blowing state. Since this operation is the reverse of the operation, the description is omitted.

  As described above, in the present embodiment, in addition to holding both ends of the up / down airflow direction changing blade 30 with the pair of arms 36a and 36b, the vicinity of the center is also held by the arm 36c positioned between them. Therefore, even if wind pressure is received in each blowing state, the up / down wind direction changing blade 30 does not bend, and stable wind direction changing control can be obtained. Further, by providing the arm 36a and the arm 36b on the outside of the air passage 7 and further providing the arm 36c along the support column 8 provided in the air outlet 37, an increase in the air blowing resistance can be minimized. .

  Further, with a simple configuration in which the arm 36c is sandwiched between the case 37c and the arm 36c is lifted upward by the elastic member 38, the arm driving motor is not required, and the material cost can be reduced.

The elastic member 38 provided in the third drive mechanism 31c may be either a rubber type or a spring type, and is not particularly limited. However, in terms of durability, the spring type is stronger than the rubber type. It is preferable because of its high durability. In the present embodiment, the torsion spring is used in the spring system. However, the elastic force is more stable than the coil spring as long as it is within the range of driving the up-and-down air direction changing blade 30 of the air conditioner of the present invention. Is preferable.

(Embodiment 2)
FIG. 8 is an exploded perspective view of the third drive mechanism of the up-and-down air direction changing blades of the air conditioner according to the second embodiment of the present invention. In the second embodiment, the first drive mechanism 31a and the second drive mechanism 31b are the same as in the first embodiment.

  In FIG. 8, the arm 36c is housed so as to be sandwiched between the first case 40 and the second case 41, and the sliding portion 42 has a predetermined frictional force upward with respect to the downward movement of the arm 36c. It is pinched so as to generate. In this way, the arm 36c is configured to urge upward force on the up / down wind direction changing blade 30, and the arm 36c can be held to prevent downward deflection of the up / down air direction changing blade 30. The frictional force may be adjusted by applying grease to the sliding portion 42, or the operation may be made smoother.

  Further, instead of sandwiching the arm 36c between the first case 40 and the second case 41 to generate a predetermined frictional force, a sufficient amount of grease is applied to the sliding portion 42, and the viscosity of the grease is applied. A frictional force may be generated. The grease may be filled so as not to leak into the case 37c formed by the first case 40 and the second case 41.

  In this manner, a predetermined upward frictional force is generated between the arm 36c, the first case 40, and the second case 41 with respect to the downward movement of the arm 36c, and the vertical wind direction is applied to the arm 36c. By configuring so that the upward force is applied to the change blade 30, it is possible to hold the arm 36c and prevent the downward deflection of the vertical air direction change blade 30.

  As described above, the air conditioner of the present invention suppresses the deterioration of the air blowing performance at the air outlet and has a small deflection of the up / down air direction changing blades, and is not limited to the air conditioner but also to the dehumidifier and the air purifier. Applicable.

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Fan 5 Inlet 6 Outlet 8 Strut 7 Air blower 10 Main body 20 Panel 21 Panel drive mechanism 30 Up-and-down air direction change blade 31a 1st drive mechanism 31b 2nd drive mechanism 31c 3rd drive mechanism 34 Blade drive motor 35a , 35b Arm drive motor 36a, 36b, 36c Arm 37a, 37b, 37c Case 38 Elastic member 40 First case 41 Second case

Claims (3)

A heat exchanger, an air outlet that blows out the air heat-exchanged by the heat exchanger, an up / down air direction changing blade that changes the vertical direction of the air that is arranged and blown out at the air outlet, and the up / down air direction changing blade An air conditioner comprising: a blade driving motor that rotates the blade; and a plurality of arms that hold the upper and lower airflow direction changing blades and move the upper and lower airflow direction changing blades in front of the outlet. Among the arms, the first arm and the second arm disposed at both ends of the up / down airflow direction changing blade are driven by arm driving motors provided respectively, and the first arm and the second arm are provided . third arm disposed between the arms, without an arm drive motor, constructed as an upward force in the direction of lifting the vertical air direction changing blade is activated, the third a The third arm is supported by a case, and a predetermined frictional force is generated between the third arm and the case with respect to the downward movement of the third arm to thereby generate the third arm. An air conditioner characterized in that an upward force is applied to an up / down airflow direction change blade on an arm. The air conditioner according to claim 1, wherein the third arm is sandwiched between the first case and the second case. The air conditioner according to claim 1 or 2, wherein a frictional force is generated by the viscosity of the grease.

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